Lumbar spine tuberculosis is diagnosed according to symptoms, signs and imaging manifestations, with chronic inflammation manifestations, as well as paravertebral shadows, T-spot positivity and other manifestations. 1. Symptoms: lumbar spine tuberculosis is usually characterized by emaciation, low-grade fever, night sweating (sweating abnormally after going to sleep and stopping after waking up), loss of appetite, anemia, etc., lumbar pain, aggravated by exertion, and in some cases nocturnal pain, and limited lumbar spine movement. 2. Physical signs: can’t bend down to do the picking up action, need to squat down to pick up the object with the waist bent at the hip and knee. If there is a lumbar abscess in the groin area, iliac fossa, lumbar triangle to feel the swelling. 3. Auxiliary examination: X-ray will find the shadow of paraspinal, narrowing of the intervertebral space and bone destruction; CT can find whether there is a cavity or dead bone formation; MRI can find whether there is inflammatory infiltration, whether there is spinal cord degeneration or compression; combined with the T-spot, blood sedimentation and other tests. The above methods can confirm the diagnosis of lumbar spine tuberculosis, and it is recommended to go to the hospital for further treatment.